// Copyright (c) 2002  Max-Planck-Institute Saarbruecken (Germany)
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org); you may redistribute it under
// the terms of the Q Public License version 1.0.
// See the file LICENSE.QPL distributed with CGAL.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $Source: /CVSROOT/CGAL/Packages/Nef_2/demo/Nef_2/nef_2_layers.h,v $
// $Revision: 1.1.6.1 $ $Date: 2004/12/19 16:07:35 $
// $Name:  $
//
// Author(s)     : Radu Ursu

#include <CGAL/IO/Qt_widget_layer.h>
#include <CGAL/IO/Qt_widget_Nef_2.h>

template <class Nef_polyhedron>
class Qt_layer_nef_blue : public CGAL::Qt_widget_layer
{
public:	
  Qt_layer_nef_blue(Nef_polyhedron &n): Nef(n){}
  void draw()
  {    
    *widget << CGAL::FillColor(CGAL::BLUE) << CGAL::GREEN;
    widget->setRasterOp(XorROP);
    *widget << Nef;
  };	
private:
  Nef_polyhedron &Nef;
};//end class 

template <class Nef_polyhedron>
class Qt_layer_nef_gray : public CGAL::Qt_widget_layer
{
public:
	
  Qt_layer_nef_gray(Nef_polyhedron &n): Nef(n){}
  void draw()
  {
    *widget << CGAL::FillColor(CGAL::GRAY) << CGAL::WHITE;
    widget->setRasterOp(XorROP);
    *widget << Nef;
  }
private:
  Nef_polyhedron &Nef;
};//end class